How do I solve an image validation error?

[Maurice Waka]

I was looking for a good image app and came across this link.

After uploading it, on trying to upload an image, I get this error:

Traceback (most recent call last):
 File "/home/mauricewaka/web2py/gluon/restricted.py", line 219, in restricted
 exec(ccode, environment)
 File "/home/mauricewaka/web2py/applications/w2p_gallery/controllers/default.py", line 176, in <module>
 File "/home/mauricewaka/web2py/gluon/globals.py", line 421, in <lambda>
 self._caller = lambda f: f()
 File "/home/mauricewaka/web2py/gluon/tools.py", line 3869, in f
 return action(*a, **b)
 File "/home/mauricewaka/web2py/applications/w2p_gallery/controllers/default.py", line 124, in edit_image
 if form.accepts(request.vars, session):
 File "/home/mauricewaka/web2py/gluon/sqlhtml.py", line 1785, in accepts
 **kwargs
 File "/home/mauricewaka/web2py/gluon/html.py", line 2149, in accepts
 status = self._traverse(status, hideerror)
 File "/home/mauricewaka/web2py/gluon/html.py", line 910, in _traverse
 newstatus = c._traverse(status, hideerror) and newstatus
 File "/home/mauricewaka/web2py/gluon/html.py", line 910, in _traverse
 newstatus = c._traverse(status, hideerror) and newstatus
 File "/home/mauricewaka/web2py/gluon/html.py", line 910, in _traverse
 newstatus = c._traverse(status, hideerror) and newstatus
 [Previous line repeated 1 more time]
 File "/home/mauricewaka/web2py/gluon/html.py", line 917, in _traverse
 newstatus = self._validate()
 File "/home/mauricewaka/web2py/gluon/html.py", line 1895, in _validate
 raise Exception(msg)
Exception: Validation error, field:file <applications.w2p_gallery.modules.images.RESIZE object at 0x7f85ff5cf7b8>

How do I solve this error.

Kind regards

[Maurice Waka]

Found out it's was a python 3.7 vs 2.7 when dealing with syringIO.

I managed to change code at module images.py to

try:

    from StringIO import StringIO 

except ImportError:

    from io import StringIO 

This was instead of 

import cStringIO

Now a new form error, error comes still when uploading : 

image.resize

What could be wrong with this. 

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[villas]

Do you have Pillow image library installed?

Check with python commandline:

>> from PIL import Image

If the system comes back with a ">>>", the Pillow modules are properly installed.

If not, install it...

pip install Pillow

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[Maurice Waka]

Hello

I did the install but still get the same error.

regards

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